<template>
  <div>
    <!-- 表头 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisiable = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表区 -->
      <el-table :data="userlist" border stripe class="el-table">
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_status">
          <template slot-scope="scope">
            <!-- {{scope.row}} -->
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="190px">
          <!-- 删除，修改，删除几个按钮的的插槽形式 -->
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              circle
              size="mine"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              circle
              size="mine"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                @click="setRole(scope.row)"
                type="warning"
                icon="el-icon-setting"
                size="mine"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 添加用户的对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisiable"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 内容主体区域 -->
      <el-form
        ref="addFormRef"
        :model="addForm"
        label-width="80px"
        :rules="addFormRules"
      > 
      <!-- 用户名 -->
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisiable = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog
      title="删除用户"
      @close="editDialogClosed"
      :visible.sync="editDialogVisiable"
      width="50%"
    >
      <!-- 内容主体区域 -->
      <!-- 修改用户的表单 -->
      <el-form
        label-width="80px"
        :rules="editFormRules"
        ref="editFormRef"
        :model="editForm"
      >
      <!-- 用户名 -->
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <!--邮箱-->
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
         <!-- 手机号 -->
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisiable = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配权限对话框 -->
    <el-dialog
      title="角色分配"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <div>
        <p>当前用户：{{ userInfo.username }}</p>
        <p>当前角色：{{ userInfo.role_name }}</p>
        <p>
          分配的新角色:
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option
              v-for="item in roleslist"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
//深藏不漏
export default {
  // 验证规则
  data() {
    //邮箱验证 回调函数
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/
      if (regEmail.test(value)) {
        return cb()
      }
      cb(new Error("请输入合法邮箱"))
    }
    //手机号验证
    // 验证手机号的正则 回调函数
    var checkMobile = (rule, value, cb) => {
       // 验证邮箱的规则
      const regMoblie =
        /^(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\d{8}$/
      if (regMoblie.test(value)) {
        return cb()
      }
      cb(new Error("请输入合法手机号"))
    }
    return {
      queryInfo: {
        query: "",
        // 当前页数
        pagenum: 1,
        //每页显示数据
        pagesize: 2,
      },
      userlist: [], //主要数据 全部数据保存
      total: 0, //总页数
      //控制添加对话框显示和隐藏
      addDialogVisiable: false,
      //控制删除对话框显示和隐藏
      editDialogVisiable: false,
      //  添加用户的表单数据
      addForm: {
        username: '', //用户
        password: '',//密码
        email: '', // 邮箱
        mobile: '' // 手机
      },
      //修改用户信息对象
      editForm: {
        username: "",
        password: "",
        mobile: "",
      },
      // 添加用户规则
      addFormRules: {
        // // 用户名
        username: [
          { required: true, message: "请输入用户名!", trigger: "blur" },
          { min: 3, max: 6, message: "长度在 3 到 12 个字符", trigger: "blur" },
        ],
         // 密码
        password: [
          { required: true, message: "请输入密码!", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "长度在 6 到 15 个字符",
            trigger: "blur",
          },
        ],
        // 邮箱的验证
        email: [
          { required: true, message: "请输入邮箱!", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        // 手机的验证
        mobile: [
          { required: true, message: "请输入手机号!", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
      // 修改用户的对话框
      editFormRules: {
        email: [
          { required: true, message: "请输入邮箱!", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机号!", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
      //控制角色对话框的显示与影藏
      setRoleDialogVisible: false,
      //需要被分配角色的用户信息
      userInfo: {},
      //所有角色的数据
      roleslist: [],
      //以选中的角色ID值
      selectRoleId: "",
    }
  },
  //生命周期函数 刷新页面
  created() {
    // console.log(this)
    this.getUserList()
  },
  methods: {
    //数据请求（async 和 await 优化异步操作） 获得所有角色数据列表
    async getUserList() {
      // axios请求后台数据
      // console.log(res);
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      })
      // 失败结果
      if (res.meta.status !== 200) {
        this.$message.error("获取用户列表失败！")
      }
      // 数据赋值
      this.userlist = res.data.users
      this.total = res.data.total//获取数据成功
      // console.log(this.userlist)
    },

    // 监听pagesize改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听 页码 改变的事件
    handleCurrentChange(newNum) {
      this.queryInfo.pagenum = newNum
      this.getUserList()
    },
    //请求后台进行后台状态的改变
    // 监听swich 开关状态的改变
    async userStateChanged(userinfo) {
      // console.log(userinfo);
      // 用户状态的更改
      // console.log(userinfo);
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      console.log(res)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error("更新用户状态失败!")
      } else {
        //提示用户更新状态成功
        this.$message.success("更新用户状态成功!")
      }
    },
    //监听用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    //点击按钮，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        // console.log(valid);
        if (!valid) return
        const { data: res } = await this.$http.post("users", this.addForm)
        // console.log(res.meta.status);
        if (res.meta.status !== 201) {
          this.$message.error("添加用户失败！")
        }
        this.$message.success("添加用户成功！")
        // 点击按钮，隐藏对话框
        this.addDialogVisiable = false
        // 重新获取用户列表数据
        this.getUserList()
      })
    },

    //展示编辑用户的对话框 点击按钮， 修改用户
    async showEditDialog(id) {
      const { data: res } = await this.$http.get("users/" + id)
      //请求失败处理结果
      if (res.meta.status !== 200) {
        this.$message.error("查询用户失败！")
      }
      this.editForm = res.data
      // 点击按钮，隐藏对话框
      // 重新获取用户列表数据
      this.getUserList()
      this.editDialogVisiable = true
    },
    //监听修改用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },

    //修改信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async (valid) => {
        //校验 表单预验证
        if (!valid) return
        //发起修改用户信息的的数据请求
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          { email: this.editForm.email, mobile: this.editForm.mobile }
        )
        if (res.meta.status !== 200) {
          return this.$message.error("更新用户信息失败！")
        }
        //关闭对话框
        this.editDialogVisiable = false
        //刷新数据
        this.getUserList()
        //提示修改成功
        this.$message.success("用户信息修改成功！")
      })
    },

    //根据id删除对应用户信息
    async removeUserById(id) {
      // console.log(id)
      ///获取数据成功
      const confirmResult = await this.$confirm(
        "此操作将永久删除该用户, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((err) => {
        return err
      })
      //如果用户确认删除，则返回值为字符串 confirm
      //如果用户取消，返回值为字符串 cancal
      // console.log(confirmResult);
      if (confirmResult !== "confirm") {
        return this.$message.info("用户取消删除")
      }
      // console.log('确认了删除');
      const { data: res } = await this.$http.delete("users/" + id)
      if (res.meta.status !== 200) {
        return this.$message.error("用户删除失败！")
      }
      this.$message.success("用户删除成功！")
    },
    //展示分配角色的对话框
    async setRole(userInfo) {
      this.setRoleDialogVisible = true
       //优化
      this.userInfo = userInfo
      //在展示对话框之获之前，获取所有角色列表
      const { data: res } = await this.$http.get("roles")
      if (res.meta.status !== 200) {
        return this.$message("获取角色列表失败！")
      }
      this.roleslist = res.data
    },
    //点击按钮，分配角色
    async saveRoleInfo() {
      //若没选择新角色，信息提示
      if (!this.selectRoleId) {
        return this.$message.error("选择要分配的角色！")
      }
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectRoleId,
        }
      )
      if (res.meta.status !== 200) {
        return this.$message.error("更新角色信息失败！")
      }
      this.$message.success("更新角色信息成功！")
      this.getUserList()//刷新当前的用户列表
      this.setRoleDialogVisible = false//隐藏当前分配角色的弹框
    },
    //监听分配角色对话框的关闭事件
    setRoleDialogClosed(){
      this.selectRoleId="",
      this.userInfo=""
    }
  },
}
</script>

<style lang="less" scoped>
</style>